Citrulline is a non-essential amino acid that is an important intermediate in the urea cycle, functioning along with other amino acids to rid the body of ammonia, a byproduct of protein metabolism. Citrulline also plays an important role in the healing process and in the maintenance of a healthy immune system. Suggested Use Take 1-2 capsules 1 to 2 times daily between meals. Supplement Facts Serving Size: 2 Veg Capsules Servings Per Container: 45 Amount Per Serving % Daily Value Calcium (from Calcium Carbonate) 36 mg 3% L-Citrulline 1.5 g (1,500 mg) Daily Values not established. Other Ingredients Hypromellose (cellulose capsule), Magnesium Oxide and Stearic Acid (vegetable source). Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens. Warnings For adults only. Consult physician if pregnant/nursing, taking medication (especially blend pressure medications and nitrates or other vasodilating drugs), or have a medical condition (especially abnormal blood pressure). Keep out of reach of children. Natural colour variation may occur in this product. Store in a cool, dry place after opening.